TY - JOUR
T1 - Effect of atmospheric corrosion on the mechanical properties of SAE 1020 structural steel
AU - Martínez, Carola
AU - Briones, Francisco
AU - Villarroel, María
AU - Vera, Rosa
N1 - Publisher Copyright:
© 2018 by the authors.
PY - 2018/4/11
Y1 - 2018/4/11
N2 - Resistance to atmospheric corrosion in different environments located in Chile and the corrosion's effect on the mechanical properties of SAE 1020 steel were studied. Atmospheric corrosivity categories at each station under study were determined. These categories were C2, for Laja; C3 and C4, for the Arica and Antarctic stations, respectively; and the most aggressive, C5 and higher at Quintero. These specific environments significantly influenced the mechanical responses of steel exposed for 36 months. Rupture elongation, the modulus of toughness, ultimate tensile strength, and hardness of the material all decreased as a function of environmental atmospheric aggressiveness. Lowered ductility is the result of the increased corrosion rate due to the high deposition of chlorides. This is due to the morphology of material degradation, which consequently occurs as pores, microstrains, and other defects that promote early rupture of the steel.
AB - Resistance to atmospheric corrosion in different environments located in Chile and the corrosion's effect on the mechanical properties of SAE 1020 steel were studied. Atmospheric corrosivity categories at each station under study were determined. These categories were C2, for Laja; C3 and C4, for the Arica and Antarctic stations, respectively; and the most aggressive, C5 and higher at Quintero. These specific environments significantly influenced the mechanical responses of steel exposed for 36 months. Rupture elongation, the modulus of toughness, ultimate tensile strength, and hardness of the material all decreased as a function of environmental atmospheric aggressiveness. Lowered ductility is the result of the increased corrosion rate due to the high deposition of chlorides. This is due to the morphology of material degradation, which consequently occurs as pores, microstrains, and other defects that promote early rupture of the steel.
KW - Atmospheric corrosion
KW - Atmospheric parameters
KW - Stress-strain test
KW - Structural steel
KW - XRD analysis
UR - http://www.scopus.com/inward/record.url?scp=85045244185&partnerID=8YFLogxK
U2 - 10.3390/ma11040591
DO - 10.3390/ma11040591
M3 - Article
AN - SCOPUS:85045244185
SN - 1996-1944
VL - 11
JO - Materials
JF - Materials
IS - 4
M1 - 591
ER -